feat(seo): add JSON-LD, OG images and RSS feed for news

src/components/public/json-ld.tsx

@@ -0,0 +1,21 @@
+/**
+ * Renders schema.org JSON-LD. The payload is data, not executable script, but
+ * `<` is escaped so an article title can never terminate the tag early.
+ */
+export function JsonLd({
+	data,
+	nonce,
+}: {
+	data: Record<string, unknown> | Record<string, unknown>[];
+	nonce?: string;
+}) {
+	return (
+		<script
+			type="application/ld+json"
+			nonce={nonce}
+			dangerouslySetInnerHTML={{
+				__html: JSON.stringify(data).replace(/</g, "\\u003c"),
+			}}
+		/>
+	);
+}